Apparatus for wiping intaglio printing-plates.



H. GEORGESQA. VALENTIN & J. ZERREISS. APPARATUS FOR WIPING INTAGLIOPRINTING PLATES.

APPLICATION FILED JUNE 10, 1913.

1,082,586. Patented Dec. 30, 1913;

-40 way of entangle,- in which:

' 'PAQPENT- enric i OIF ST.-DIZIER;, AND AUGUSTE VALENTIN AND ZERREISS,OF

. l y IUTEAUX, FRANCE. I

APPARATUS iron winner INTAGLIO PRINTING-PLATES.

Specification of Letters Patent. lutgnfgd- D90. 30, 1 913. lginalfapplicetion filed October 8, 1910,.Seria1'1io. 586.052; Dividedand this application filed June 10,

' 1913. Serial No. 772,911.

.' 'Ta'wZL-ivhpm itimay concern: 1

- :iBe it known that we, Hn'xm Geono'rs. Cllllden oftheRepublioof-France, and resident .of'zSti-Dizi'ef, France, andAirous'rs VALEN- i min",- citijzen of the Republic of France, and"AJEAX'ZERREISS, subject ofthe German Ein- :pire, both residents ofPuteaux, France, have inventedcerta in new and uscful'ImprovenientsinApparatus .for W'iping I'nl'aglio- Printing-Plates, ofwvhich the.following is a aispecification', the subject-matter'of this' application being diyided from our prior toq pendi ngapplication, SerialNo. 586,052; for I a process and apparatus forwiping intaglioprinting-plates, filed October 8,1910.

The apparatus according to the'present inrentioli comprises principallya roller ot a soft and resilient; material such as gelatin. rubberor thelike, for wiping the surface of intag'lio printing plates previouslyinked.

The rollerhaving'a certain speed of rota- .tion, is arran ged in sucha-inanner thatit caln be rubbed tangentially on the surface of theinked'plates and wipe them. This roller -is"a'fterw ard washed,cleanedand the ink, etci is wi ed-01f, from the same during the timeconsumedf'b'y 'one' revolution of said roller; saa 'r'oll'ei" ispassedthrough a' cup containing'a-liquid'which dissolves the ink used 'jand bythe frictional contact with brushes assists in the solution, of the inkcollected on therpller; a scraper being provided for wiping the rollerso that during itsrota tion its surface is always clean when 1 cominginto contact with the surface of the "plates to be wiped. I

f In'fo rder that the invention may be clearly understood; thedescription isi'accoiiipanied a j dr'awin showing the apparatus by.

- Figure 'l is an end view'of the apparatus. Fig. 211. longitudinal viewofFigl 1, pro- 'jected to the right, the frontwall of thecppbeing'brokenaivay so as to show the interiori5 'ofthe appar'atus'. Fig.3 is a plan View of theapparatus, and Fig. 4 is a vertical cross sectionthrough the same;

'- W2" n" app arat-us.The' wiping apparatus compi-ises'the followingparts: A roller or cylinder 1, ofsoft and resilient material is cast on01' secured to a steel spindle 2 provided at each of its ends withjournals 3 and 4 which enable the roller to be mountrevolving parts ofthe machine.

ed'in adjustable bearings suitably arranged on the frame of the machineon which the apparatus is to bc'pluced, in such a manner as to enable anadjustment of the tangential contact of the roller with the surface ofthe plates to be cleaned. The' rotation of the wiping roller 1 isproduced by suitable transmission means controlled by one of the A cup 5preferably" of cast-iron :conta'ius as illustrated in the drawing. thecleaning brushes ('5 and 7 and the scraper S. The cleaning brushes 6 and7 are mounted .on mandrels 9 the cndjournals of which rotate in bearings10 and 11 at the lower ends of levers 12 and 13. These levers aresecurcrlto the: spindles 14 and 15 which rotate in the bearings ofthebrackets 16 and 17 and in thesockets or sleeves. 18' and 19. Thehnandrels 9 carry drivingrollers 23 and 24 which come into 'ets 16 and17.

' Drive for the cleaning 7muslzes. -Grooved pulleys 20 and 21 are keyedto the'rinss carrying the driving rollers and 2G. The to tt ition ofitlic pulleys 9Q and 2t brought aboutby abclt driven by a pulley keyed toone of the revolving parts of the machine. The pulleys 90 and 2t keyedto the same rings as the (:lri'v in; rollers 25 and 2G, rotate the'jsuid r ollers which bring about their 'contact with rollers 92-) andQ-tjkeyed to the mandrels oft-he cleaningbrushes 6 and T7, the rotationof thesai' d brushes.

v Regulation 01' ariZjustmentof-flm contact 0f the cleaningbrushcsjtcifll. the surface of the wiping rollwn 'lhe adjustment of thedistance between thc axles of the wiping roller land of the cleaningbrushes 6 and 7 is effected incans of levers 29 and 30 secured to thespindles 14.;ind 15 and pivoted Y .by means offeiongated holes to.eccentric pins 31 and 32 eprried by a disk 33. mounted on a journal \34screwed into the side of the cup. The disk 33 is provided with abell-crank lei-ch35 having a handle 36 on which is mounted a pawl 37.Thispawl is. held in "engagement with the teeth of a toothed rack 38bymeans of a spring 39 which presses against the pivoted lever 14mounted on the handle. It will be readily understood that the regulationof the contact of the cleaning brushcs'nith the wiping roller orcylinder is cllected in the following manner: \Vhen the handle '26 ofthe lever 25 is gripped and 'the spring lever H is pressed with thefinger, the pawl 37 will be-disengaged from the teeth of the toothedrack 38 and it will be possible to manipulate the handle 36 so as tobringabout an angularmovement of the disk 33 upon the pivot pin 34. Thejournals 31 will thcnbring about an angular movement of the levers '29and 30 which, by means of the spindles 14- and 15, will produce the sameangular movement of the levers 12 and 13 regulating the contact betweenthe cleaning brushes 6 and .7 and the wiping roller or cylinder 1.

Regulation of the contact between the wiping scraper and the wipingwallet-The scraper 8 is held in place by means of screws on the crossbar 42. This cross bar is provided at its end with journals 43 and 44:mounted to revolve with a slight friction in the bearings 45 and 46integrally made with the cup. The cross bar 42 carries an extension 47to which is connected a tension spring 48 also connected to a journal 49screwed-into the bottom of the cup. The spring 48 draws the lever 47 andhas the tendency. to keep the scraper away from the surface of thewiping cylinder 1. It will.

therefore be only necessary to overcome the resistance of the spring bypressing on the upper face of the scraper in order to produce a contactbetween said scraper and the wip-. ing cylinder. To this end. on the'upper face of the scraper is arranged a bar 50 having notches intowhich engage levers 51 pivoted l to the levers 52. The upper ends of thesaid levers 52 are pivoted to lugs 53 integrally cast with the cup.

The bottom ends of the levers 52 arepivoted to the corresponding end ofthe rods The latter is mounted with its ends in guides 58. It is alsoprovided at its ends with two pins 59 and 60 held in oval holes in thelevers 61 and 62 which are keyed to thespindle 63 mounted in sleeves 64in tegrallv made with the cup. I

Tn the construction in question the adjustment of the contact betweenthe scraper and the surface of the wiping roller is ef-- fected bymanipulating the lever 65, wherebythe cross bar 56 is moved eitherforward or backward. in case it is moved forward, the bar 56 exerts apull upon the rods 54 which in their turn exert a pull upon the le vers52, which, by means of the levers 51, hearing on the scraper bring itinto contact with the surface of the wiping cylinder.

roller, in case the generatrix of the said roller is not absolutelystraight, is obtained by means of milled nuts 57 whichf separate andregulate the pressureottlielever 51- upon the scraper,

The wiping device thus described shows the following characteristicfeatures': The

cup containing the liquid dissolving the ink employed for inking theplates is provided with walls through which noneof'them'echanical partspasses below the level of the liquid contained in said cup. The-adjust-.

ment and the distance of the brushes relatively to the surface of thewiping roller, is efl'ected by simply manipulating a. leverarrangedwithin reach of the hand in front of the apparatus. Theadjustment of the scraper is obtained partly by means of set screwsarranged within reach of the hand in front of the apparatus. -Thedistance or the contact of the scraper, with the surface ofthc wipingroller is quickly obtained by manipulating levers arranged within reachof the operator in front of the apparatus. The arrangement of thedifferent parts for regulating the cleaning brushes and the wip ingscraper relatively to the surface of the wiping roller is such as toenable the adjustment in question to be effected-without the necessityof stoppingthe working of the apparatus. a. w We claim: 1. In anapparatus of the character described for wiping intagliop'rinlingplates, the combination of a cylinder of a. soft. resilientmateriah'with a cup th ough which said cylinder is passed adaptedt6'receive an ink dissolving liquid, means forrevolvin said cylinder inthe liquid contaiuedin sai cup, means frictionally contacting with saidcylinder during its passage through said cup for brushing it below theliquid level, and means for scraping the surface of the 'cylm-' ,derabove the liquid level within said up,

substantially as described. 2. In an apparatus of the character described for wiping intaglio printing plates,

the combination of a cvlinder of a soft. re

silient material, with a cup through which said cylinder is passed.'adapted-tol receive an ink dissolving liquid, means for'revolvsaid cup,cleaning brushes frictionally contacting with said cylinder during itspassage through said cup for brushing it below the ing said cylinder inthe liquid contained in I silient materiah with acup throughwhich saidcylinder is passed, adapted to receive an ink dissolving liquid, meanscontrolled by a revolving part of the machine for revolving saidcylinder in the liquid contained in saidcup, cleaning brushesfrictionally 0on tacting with said cylinder during its passage throughsaid cup, for brushing it below the liquid level, a scraper revolvinwithin said cup tor-"scraping the surface 0 the cylinder above theliquid level within said cup, means for regulating the contact of thecleaning 15 brushes with the cylinder, and means for regulating thecontact of the scraper with said cylinder, substantially as'described.

In testimony whereof we afiix our signatures in presen'ce of twowitnesses.

HENRI GEORGES. AUGUSTE VALENTIN. JEAN ZERREISS. Witnesses:v

HANsoN'O. Coxn, 'Ronorrrm' DELINGETTE.

